Air intake for combustion engines



N. R. STEWART.

AIR INTAKE-FOR COMBUSTION ENGINES.

APPLICATION FILED SEPT. 30, 1920.

1,410,846. Patented Mar. 28,1922.

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UNITED STATES PATENT OFFICE.

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AIR INTAKE m "ooivi ansrion ENGINES.

To all whom it may concern:

Be it known that I. NOBLE ROLAND 'S'rnw-x ART, a citizen of the United States, residing at Santa Maria, in the county of Santa Bar bara, State of California, have. invented a new and useful Air Intake for Combustion Engines; ing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to devices for furnishing additional air which has been preheated, to the intake manifold of an internal combustion engine for volatilizing the charge before it enters the engine cylinder.

. It has been found that where additional air is furnished, which air preheated that the results obtained from the fuel are increased as to power and mileage from a given amount of fuel. v i

A further object .is to provide an additional air supply devicefor an internal combustion engine, said device comprising a flexible pipe, one end of which is provided with a perforated screening member adapted to be threaded into the intake manifold, and the other end of said pipe being adapted to be secured and held on the exhaust manifold of the engine and provided with a screening member, through which member the air is sucked and screened and heated as it passes through a portion of the pipe which contacts with the exhaust manifold before entering the intake manifold. A further object is to provide a valve intermediate the ends of the pipe and controllable from a distance, by means of which valve the amount of air admitted to the intake manifold may be controlled.

With the above and other objects in view the invention resides in the combination and- .end-

and I do hereby declare the follow-.

l Specification of Letters Patent. Patented 1H3 28,1922; Application filed September 30, 1920. Serial No. 413,755.. i

. Figure?) is anend view ofa discharge end of the device.

Referring to the drawings, the numeral 1 designates the exhaust manifold of an internal combustion engine and 2 the intake manifold. The preheated air supplying device 3 comprises the pipe sections 5 and 6.

be controlled by means of an operating rod 7 12 having fingers 13 which are received by diametrically disposed apertures .14 in the valve wheel 15. By means of therod 12 the valve 10 may be controlled from aremote point, such for instance as adjacent the steering wheel. Connected to the valve 10 is the end 16 of the pipe section 6, pipe section 6 being provided with a strainer member 17, whichis threaded into the intake manifold 2 at a point between the carburetor and the intake ports of the engine.

By providing additional air which air preheated and mixed with the charge before it enters the cylinder it has been found that the charge is volatilized and that greater power is obtained from the explosion and also a greater mileage may be obtained from a gallon of gasoline than if the device were not used.

The pipe sections 5 and 6 are preferably made from a flexible material so that the device may be easily and quickly applied to various types of engines.

From the above it will be seen that a device is provided for admitting preheated air to the charge of an internal combustion engine, which device is simple in construction and one which may be easily and quickly applied to various types of engine.

The invention having been set forthwhat is claimed as new and useful is with a strainer extending into the intake manifold, said pipe extending forwardly up wardly and rearwardly the rearwardly extending portion of the pipe being secured to provided with a re'ai'Wa-rdly disposed apelf tured operating disc, a rea 'wardly z ndnp Wardly extending operating rod, said oper;

' ating. rod being detachably connected to the apertnred disc', said "forwardly, iipw'ardly and rearwardly extending; .p1pie forwardly of its securing peints being? provided with su'fiicient slack to allow the valve to he=pi0sitioned at various angles by bending the pipe;

' tvvo subsciib'ing Witnesses.

thereby allowing the operating red to be positioned at various reei wardly extending angles a-cce'rdi'ng' tethetype of automobile engineio ,\V l1 l(3h th6 -device is applied. ln testimony ivhefeof I have signed my name to this specification in the presence of H NOBLE R. STEWVART.

Witnesses: i

A. B. BIGLE'E, O. WILLIAMS; 

